PhysioEX notes Autorhythmicity- heart’s ability to trigger its own contractions Phase O- a lot like depolarization in neuronal action potentials. Sodium channels open‚ increase of sodium INTO cell. Phase 1- sodium channels close‚ potassium channels close‚ decrease in potassium and sodium. Calcium channels open‚ increase of calcium into cell. Phase 2- Plateau phase‚ membrane still depolarized (contract). Potassium channels closed‚ L-type calcium channels stay open. Lasts 0.2 seconds/200
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Medications for cardiac arrest * Epinephrine 1mg iv bolus every 3-5 mins * Vasopressin- alternative to epinephrine * Treatment for vf‚ vt‚ pea‚ asystole * Dose: 40 units iv single * Norepinephrine – for severe hypotension * For low total peripheral resistant * Dose 0.1-0.5 mcg/kg/min infusion * Not use for cardiac arrest * Dopamine – Dose: 2-20 mcg/kg/min infusion‚ titrate to patient response * Do not administer in same iv line as Na bicarb * Dobutamine
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EXERCISE 6: CARDIOVASCULAR PHYSIOLOGY |ACTIVITY 1: Investigating the Refractory Period of |Answers | |Cardiac Muscle | | |Which of the following types of muscle tissue can depolarize spontaneously in the |C- Cardiac Muscle
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Student Sheet Name: Travis Eldridge Date: 4/ 24/ 2015 Instructor’s Name: DR Erin Wheeler Assignment: SCIE207 Phase 4 Lab Report Part 2 Title: Exploring Endocrine‚ Circulatory‚ and Respiratory Systems Instructions: Your lab report from Part 1 along with the Part 2 activity will serve as a guide to answer the questions and to complete the tables for the endocrine‚ cardiovascular (circulatory)‚ and respiratory systems. When your lab report is complete‚ submit this document to your instructor
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produce cortisol and the adrenal medulla to produce epinephrine. Cortisol is key to survival kicking you body into fight or flight mode that gives your body the energy to run from danger. It does this by causing your heart to beat faster‚ respiration rate to increase‚ blood vessels in the arms and legs to dilate‚ digestive process to change and glucose levels (sugar energy) in the bloodstream to increase to deal with the emergency. Epinephrine will assist in this process. Reproductive systems
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groups of nerve endings. A woman training for a marathon just completed running 5 miles out of the 10 miles she will run for her training sessions today‚ some neurotransmitters that might be involved in this act would be epinephrine‚ dopamine‚ and endorphins. Epinephrine it deals with energy‚ and dopamine because it plays a key role in regulating pain & pleasure‚ which exercising is a mixture of both. Lastly‚ endorphins because when you
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Epidemiology Of Trauma‚ PTSD‚ And Other Posttrauma Disorders. Trauma‚ Violence‚ & Abuse‚ 10(3)‚ 198-210. Bustos‚ S.‚ Maldonado‚ H.‚ & Molina‚ V. (2006). Midazolam Disrupts Fear Memory Reconsolidation. Neuroscience‚ 139(3)‚ 831-842. Cahill‚ L. (2003). Epinephrine Enhancement Of Human Memory Consolidation: Interaction With Arousal At Encoding. Neurobiology of Learning and Memory‚ 79(2)‚ 194-198. Cohen‚ H. (n.d.). Treatment of PTSD | Psych Central. Psych Central.com. Retrieved October 27‚ 2013‚ from http://psychcentral
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threshold voltage. Neurotransmitters affect different types of smooth muscle differently‚ depending on the association of the smooth muscle with excitable cells. In general‚ acetylcholine increases the muscle cell’s permeability to calcium‚ while epinephrine decreases the cell’s permeability to calcium. The earthworm (Lumbricus spp.) gut can be dissected and examined in vitro using an organ bath and force transducer. This preparation is robust; it can remain active for several hours. In this experiment
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treatments would be useless to humans. My youngest brother suffers from severe bronchiole asthma. The animals involved in research for the treatment of asthma include steers and guinea pigs. For example‚ the adrenal glands of steers produce epinephrine. Epinephrine is a neurotransmitter used in the treatment of asthma. The controlling hormone‚ ACTH‚ found in the pituitary gland of steers‚ is used in medications to relieve the symptoms of asthma. The guinea pig is another animal used in the research
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contractile force of the neurogenic heart. The heart rate of the neurogenic and myogenic hearts is regulated by neurotransmitters. Hearts in vertebrates are excited by epinephrine and serotonin although with varied effects and inhibited by acetylcholine. Invertebrates’ heart rates can be increased due to acetylcholine‚ serotonin and epinephrine. Crayfish heart rates will decrease as temperature decreases because they are poikilotherms. The heart rate slows due to decreased
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